Table 1 Lattice parameters and cell volumes for Li2FeSiO4 and Mg1–xFeSiO4 during magnesium insertion and extraction

From: High energy density rechargeable magnesium battery using earth-abundant and non-toxic elements

 

Lattice

a (Å)

b (Å)

c (Å)

V (Å3)

*Li2FeSiO4 (as-prepared)

Monoclinic

8.2433(4)

5.0226(1)

8.2373(3)

336.31

*FeSiO4 (delithiated)

Orthorhombic

10.3969(20)

6.5618(16)

5.0334(8)

343.39

Mg0.5FeSiO4 (magnesiated)

Orthorhombic

10.2829(6)

6.5767(5)

5.0019(3)

338.27

MgFeSiO4 (magnesiated)

Orthorhombic

10.2464(21)

6.5038(12)

4.9427(9)

329.38

Mg0.5FeSiO4 (demagnesiated)

Orthorhombic

10.2526(7)

6.5582(7)

4.9985(3)

335.42

*FeSiO4 (demagnesiated)

Orthorhombic

10.3434(19)

6.5779(13)

5.0185(8)

341.45

  1. *Values from Rietveld refinement of powder XRD data.
  2. Values from indexing powder XRD data.